CN107901468A - Solid propellant rocket composite material casing forming method - Google Patents
Solid propellant rocket composite material casing forming method Download PDFInfo
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- CN107901468A CN107901468A CN201711150708.5A CN201711150708A CN107901468A CN 107901468 A CN107901468 A CN 107901468A CN 201711150708 A CN201711150708 A CN 201711150708A CN 107901468 A CN107901468 A CN 107901468A
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- housing
- heat insulating
- winding
- insulating construction
- sand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/006—Producing casings, e.g. accumulator cases
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Abstract
The invention discloses a kind of solid propellant rocket composite material casing forming method, comprise the following steps：Make front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake；Make heat insulating construction；Fiber Wet Winding Process makes housing；It is segmented housing connection.Using connection is mechanically fixed after sectional forming, in the shaping of large scale solid motor composite case, simplifies moulding process, reduce forming technique difficulty, so as to reduce the requirement to former and technological equipment, be conducive to preporm；Using connection is mechanically fixed after sectional forming, the design requirement of different structure scale engine housing is adapted to, reduces the input of large-scale molding die, can meet mass production requirement.
Description
Technical field
The invention belongs to solid engines burning chamber shell field shaping technique, in particular to a kind of solid propellant rocket
Composite material casing forming method.
Background technology
Solid motor composite case has the characteristics that light-weight, specific strength is high compared with metal shell, using multiple
Condensation material housing helps to mitigate engine passiveness quality, improves engine carrying capacity.Large-scale, heavy solid rocket engine
Size and weight are all very big, it is molded the limitation for being vulnerable to the factors such as mold design processing and capacity of equipment, therefore can use and divide
Section manufacturing technology is solved, and fragmentation technique is mainly applied more on metal shell at present, and as composite material casing exists
Application on large-scale, heavy solid rocket engine, is following winding housing development using composite material segmentation manufacturing technology
One direction.
Composite material casing sectional forming technology is suitable for the preparation of large scale non-metal shell, it can be adapted to strongly
Different motor body Structural Design Requirements, the technology relative to integral forming method can greatly simplify large scale housing into
Pattern has and manufacture craft, in addition to the of less demanding of former ability, easily realizes motor body scale, mass
Production, is the important forming technique of following large-sized solid rocket engine.
The content of the invention
Present invention aim to the deficiency of the above-mentioned technology of pin, there is provided a kind of moulding process is simple and process consistency
Good solid propellant rocket composite material casing forming method.
To achieve the above object, the solid propellant rocket composite material casing forming method designed by the present invention, including
Following steps：
1) front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake are made
1a) quartz mortar is filled in respectively front head sand core shaping mould, placket section sand core shaping mould, rear cylinder section sand core into
In pattern and rear head sand core shaping mould, and tamping of pressurizeing；
1b) be heating and curing to quartz mortar, after curing through the demoulding obtain successively front head sand cake, placket section sand cake,
Cylinder section sand cake and rear head sand cake afterwards, and front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake surface is equal
It is stand-by after finishing；
2) heat insulating construction is made
2a) successively by front head sand cake, placket section sand cake be assembled in winding mandrel correspondence position formed front head core and
Placket section core；Then metal connecting piece inner surface before the first EPDM film is attached to, and the first EPDM will be posted
The preceding metal connecting piece of film is assembled on placket section core cake, finally by technique rear joint auxiliary mould after winding mandrel
End, piece housing winding mandrel before formation；
Processing release paper is pasted on preceding piece housing winding mandrel, it is then that front head heat insulating construction molding is de- installed in having pasted
On the preceding piece housing winding mandrel of mould paper, front head heat insulating construction molding is fixed on preceding piece housing by front head positioning tool
On winding mandrel, and front head heat insulating construction molding of polishing needs the bonding site of manual pasting；By the second EPDM film
Sampling manual pasting method be attached to before piece housing winding mandrel surface direct tube section, the second EPDM film respectively with preceding envelope
First ethylene-propylene diene copolymer oblique cut grafting of head heat insulating construction molding bonding site, preceding metal connecting piece inner surface, before completing housing
Section heat insulating construction coats to form front head heat insulating construction and preceding direct tube section heat insulating construction；
2b) successively by rear cylinder section sand cake, rear head sand cake be assembled in winding mandrel correspondence position formed rear cylinder section core and
Rear head core, is then attached to rear metal connecting piece inner surface by the 3rd EPDM film, and will post the 3rd EPDM
The rear metal connecting piece of film is assembled on rear cylinder section core cake, finally by technique front connector auxiliary mould before winding mandrel
End, piece housing winding mandrel after formation；
Processing release paper is pasted on rear piece housing winding mandrel, it is then that rear head heat insulating construction molding is de- installed in having pasted
On the rear piece housing winding mandrel of mould paper, rear head heat insulating construction molding is fixed on rear piece housing by rear head positioning tool
On winding mandrel, and rear head heat insulating construction molding of polishing needs the bonding site of manual pasting；By the 4th EPDM film
The method of sampling manual pasting is attached to the direct tube section on rear piece housing winding mandrel surface, the 4th EPDM film respectively with rear envelope
3rd ethylene-propylene diene copolymer oblique cut grafting of head heat insulating construction molding bonding site, rear metal connecting piece inner surface, after completing housing
Section heat insulating construction coats to form rear head heat insulating construction and rear direct tube section heat insulating construction；
3) fiber Wet Winding Process makes housing
3a) with electric angle grinder by front head heat insulating construction, preceding direct tube section heat insulating construction, rear direct tube section heat insulating construction and after
End socket heat insulating construction figuring of surface is smooth；
3b) one layer of bonding agent is uniformly brushed respectively in front housing section heat insulating construction and housing back segment heat insulating construction surface；
Cycloaliphatc glycidyl ester type epoxy resin, curing agent and accelerating agent 3c) are weighed by preset ratio, through mixed preparing
Go out winding epoxy resin adhesive liquid；
Prepared epoxy resin adhesive liquid 3d) is poured into the glue groove of wrapping machine, then completes heat insulating construction cladding
Carbon fiber wet winding shaping winding layer is carried out on preceding piece housing winding mandrel, rear piece housing winding mandrel, and is inhaled in winding
Walk the epoxy resin adhesive liquid of affluence；
After 3e) being completely wound formable layer, enter stove be formed by curing leading portion winding housing prefabricated component and back segment winding housing it is prefabricated
Part；
4) it is segmented housing connection
4a) leading portion is wound in technique rear joint auxiliary mould in housing prefabricated component, back segment winding housing prefabricated component respectively
Technique front connector auxiliary mould is cut off, and removes the front head positioning tool in leading portion winding housing prefabricated component and back segment winding shell
Rear head positioning tool in body prefabricated component, finally respectively winds leading portion in housing prefabricated component and back segment winding housing prefabricated component
The demoulding forms leading portion winding housing and back segment winding housing；
4b) clear up leading portion winding housing and the residual sand of back segment winding enclosure interior；
Leading portion 4c) is wound into the preceding metal connecting piece position in housing and the rear metal connecting piece portion in back segment winding housing
Position is fixed to form required composite material casing by pin.
Further, in the step 1), quartz mortar process for preparation is specific as follows：
Polyethylene alcohol and water is pressed 1：4~5 quality parts ratio prepares quartz sand binder, by quartz sand binder and stone
Sand presses 1：5~7 quality parts ratio, which is uniformly mixed, is prepared into quartz mortar；And the solidification temperature of quartz mortar is 100~120
℃。
Further, in the step 2), processing release paper is polytetrafluoroethylfiberglass fiberglass adhesive tape.
Further, the step 3b) in, bonding agent is EPDM this build bonding agent.
Further, the step 3c) in, cycloaliphatc glycidyl ester type epoxy resin, curing agent and accelerating agent press matter
Measuring portion rate is：65~68：50~60：1.2~1.5.
Further, the step 3e) in, curing cycle for 70~90 DEG C/2~3h, 110~125 DEG C/2~3h, 135
~155 DEG C/4~6h.
Compared with prior art, the present invention has the following advantages：
1) connection is mechanically fixed after using sectional forming, in the shaping of large scale solid motor composite case, letter
Moulding process is changed, has reduced forming technique difficulty, so as to reduce the requirement to former and technological equipment, be conducive to low
Cost is molded；
2) connection is mechanically fixed after using sectional forming, adapts to the design requirement of different structure scale engine housing,
The input of large-scale molding die is reduced, can meet mass production requirement.
Brief description of the drawings
Fig. 1 is embodiment forming process schematic diagram.
Each part numbers are as follows in figure：Preceding metal connecting piece 1, rear metal connecting piece 2, front head positioning tool 3, rear head
Positioning tool 4, winding layer 5, pin 6, front housing section heat insulating construction 7, housing back segment heat insulating construction 8.
Embodiment
With reference to Fig. 1 and specific embodiment, the present invention is described in further detail, easy to more clearly understand this
Invention, but they do not form the present invention and limit, and following embodiments are with reference to Fig. 1.
Embodiment 1
1) front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake are made
40kg water 1a) is weighed, is heated to 60 DEG C, then adds 8kg polyvinyl alcohol, preparing quartz sand through fully mixing sticks
Mixture；
300kg quartz sands 1b) are weighed, the quartz sand binder prepared is poured into quartz sand, is stirred in mixer
After uniformly, quartz mortar is prepared, wherein quartz sand mesh number is 100~140 mesh；
1c) quartz mortar is filled in respectively front head sand core shaping mould, placket section sand core shaping mould, rear cylinder section sand core into
In pattern and rear head sand core shaping mould, and tamping of pressurizeing；
Quartz mortar after 1d) will be die-filling enters stove, is warming up to 120 DEG C and keeps the temperature the curing that 15h carries out quartz mortar, cures
Obtain front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake successively by the demoulding, and by front head sand cake,
Placket section sand cake, rear cylinder section sand cake and rear head sand cake surface are stand-by after repairing；
2) heat insulating construction is made
2a) successively by front head sand cake, placket section sand cake be assembled in winding mandrel correspondence position formed front head core and
Placket section core；Then metal connecting piece inner surface before the first EPDM film is attached to, and the first EPDM will be posted
The preceding metal connecting piece 1 of film is assembled on placket section core cake, finally by technique rear joint auxiliary mould mounted in winding mandrel
Rear end, piece housing winding mandrel before formation；
Polytetrafluoroethylfiberglass fiberglass adhesive tape is pasted on preceding piece housing winding mandrel, then by front head heat insulating construction molding
On the preceding piece housing winding mandrel for having pasted polytetrafluoroethylfiberglass fiberglass adhesive tape, front head heat insulating construction molding passes through preceding envelope
Before head positioning tool 3 is fixed on piece housing winding mandrel, and front head heat insulating construction molding of polishing needs the viscous of manual pasting
Socket part position；The direct tube section on piece housing winding mandrel surface before the method for second EPDM film sampling manual pasting is attached to,
Second EPDM film respectively with front head heat insulating construction molding bonding site, preceding metal connecting piece inner surface the one or three
First the third film of second overlap joint, completes the cladding of front housing section heat insulating construction 7 and forms front head heat insulating construction and preceding direct tube section heat insulating construction；
2b) successively by rear cylinder section sand cake, rear head sand cake be assembled in winding mandrel correspondence position formed rear cylinder section core and
Rear head core, is then attached to rear metal connecting piece inner surface by the 3rd EPDM film, and will post the 3rd EPDM
The rear metal connecting piece 2 of film is assembled on rear cylinder section core cake, finally by technique front connector auxiliary mould mounted in winding mandrel
Front end, piece housing winding mandrel after formation；
Polytetrafluoroethylfiberglass fiberglass adhesive tape is pasted on rear piece housing winding mandrel, then by rear head heat insulating construction molding
On the rear piece housing winding mandrel for having pasted polytetrafluoroethylfiberglass fiberglass adhesive tape, rear head heat insulating construction molding passes through rear envelope
Head positioning tool 4 is fixed on rear piece housing winding mandrel, and rear head heat insulating construction molding of polishing needs the viscous of manual pasting
Socket part position；The method of 4th EPDM film sampling manual pasting is attached to the direct tube section on rear piece housing winding mandrel surface,
4th EPDM film respectively with rear head heat insulating construction molding bonding site, rear metal connecting piece inner surface the three or three
First the third film of second overlap joint, completes the cladding of housing back segment heat insulating construction 8 and forms rear head heat insulating construction and rear direct tube section heat insulating construction；
3) fiber Wet Winding Process makes housing
3a) with electric angle grinder by front head heat insulating construction, preceding direct tube section heat insulating construction, rear direct tube section heat insulating construction and after
End socket heat insulating construction figuring of surface is smooth；
3b) one layer of EPDM sheet is uniformly brushed respectively in front housing section heat insulating construction and housing back segment heat insulating construction surface
Build bonding agent；
1.1kg cycloaliphatc glycidyls ester type epoxy resin, 1.0kg curing agent and 0.02kg accelerating agents 3c) are weighed, through mixed
Conjunction makes winding epoxy resin adhesive liquid；
Prepared epoxy resin adhesive liquid 3d) is poured into the glue groove of wrapping machine, then completes heat insulating construction cladding
Carbon fiber wet winding shaping winding layer 5 is carried out on preceding piece housing winding mandrel, rear piece housing winding mandrel, and is inhaled in winding
Walk the epoxy resin adhesive liquid of affluence；
After 3e) being completely wound formable layer, enter stove be formed by curing leading portion winding housing prefabricated component and back segment winding housing it is prefabricated
Part, wherein, curing cycle is 90 DEG C/3h, 125 DEG C/2.5h, 145 DEG C/5.5h；
4) it is segmented housing connection
4a) leading portion is wound in technique rear joint auxiliary mould in housing prefabricated component, back segment winding housing prefabricated component respectively
Technique front connector auxiliary mould is cut off, and removes the front head positioning tool in leading portion winding housing prefabricated component and back segment winding shell
Rear head positioning tool in body prefabricated component, finally respectively winds leading portion in housing prefabricated component and back segment winding housing prefabricated component
The demoulding forms leading portion winding housing and back segment winding housing；
4b) clear up leading portion winding housing and the residual sand of back segment winding enclosure interior；
Leading portion 4c) is wound into the preceding metal connecting piece position in housing and the rear gold in back segment winding housing by matching requirements
Belong to connector position to fix by pin 6, and the sealing in mating connection face uses Parker O-ring, so as to be formed required compound
Material housing.
Embodiment 2
1) front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake are made
200kg water 1a) is weighed, is heated to 60 DEG C, then adds 40kg polyvinyl alcohol, quartz sand is prepared through fully mixing
Binder；
1500kg quartz sands 1b) are weighed, the quartz sand binder prepared is poured into quartz sand, is stirred in mixer
After uniformly, quartz mortar is prepared, wherein quartz sand mesh number is 100~140 mesh；
1c) quartz mortar is filled in respectively front head sand core shaping mould, placket section sand core shaping mould, rear cylinder section sand core into
In pattern and rear head sand core shaping mould, and tamping of pressurizeing；
Quartz mortar after 1d) will be die-filling enters stove, is warming up to 120 DEG C and keeps the temperature the curing that 18h carries out quartz mortar, cures
Obtain front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake successively by the demoulding, and by front head sand cake,
Placket section sand cake, rear cylinder section sand cake and rear head sand cake surface are stand-by after repairing；
2) heat insulating construction is made
2a) successively by front head sand cake, placket section sand cake be assembled in winding mandrel correspondence position formed front head core and
Placket section core；Then metal connecting piece inner surface before the first EPDM film is attached to, and the first EPDM will be posted
The preceding metal connecting piece 1 of film is assembled on placket section core cake, finally by technique rear joint auxiliary mould mounted in winding mandrel
Rear end, piece housing winding mandrel before formation；
Polytetrafluoroethylfiberglass fiberglass adhesive tape is pasted on preceding piece housing winding mandrel, then by front head heat insulating construction molding
On the preceding piece housing winding mandrel for having pasted polytetrafluoroethylfiberglass fiberglass adhesive tape, front head heat insulating construction molding passes through preceding envelope
Before head positioning tool 3 is fixed on piece housing winding mandrel, and front head heat insulating construction molding of polishing needs the viscous of manual pasting
Socket part position；The direct tube section on piece housing winding mandrel surface before the method for second EPDM film sampling manual pasting is attached to,
Second EPDM film respectively with front head heat insulating construction molding bonding site, preceding metal connecting piece inner surface the one or three
First the third film of second overlap joint, completes the cladding of front housing section heat insulating construction 7 and forms front head heat insulating construction and preceding direct tube section heat insulating construction；
2b) successively by rear cylinder section sand cake, rear head sand cake be assembled in winding mandrel correspondence position formed rear cylinder section core and
Rear head core, is then attached to rear metal connecting piece inner surface by the 3rd EPDM film, and will post the 3rd EPDM
The rear metal connecting piece 2 of film is assembled on rear cylinder section core cake, finally by technique front connector auxiliary mould mounted in winding mandrel
Front end, piece housing winding mandrel after formation；
Polytetrafluoroethylfiberglass fiberglass adhesive tape is pasted on rear piece housing winding mandrel, then by rear head heat insulating construction molding
On the rear piece housing winding mandrel for having pasted polytetrafluoroethylfiberglass fiberglass adhesive tape, rear head heat insulating construction molding passes through rear envelope
Head positioning tool 4 is fixed on rear piece housing winding mandrel, and rear head heat insulating construction molding of polishing needs the viscous of manual pasting
Socket part position；The method of 4th EPDM film sampling manual pasting is attached to the direct tube section on rear piece housing winding mandrel surface,
4th EPDM film respectively with rear head heat insulating construction molding bonding site, rear metal connecting piece inner surface the three or three
First the third film of second overlap joint, completes the cladding of housing back segment heat insulating construction 8 and forms rear head heat insulating construction and rear direct tube section heat insulating construction；
3) fiber Wet Winding Process makes housing
3a) with electric angle grinder by front head heat insulating construction, preceding direct tube section heat insulating construction, rear direct tube section heat insulating construction and after
End socket heat insulating construction figuring of surface is smooth；
3b) one layer of EPDM sheet is uniformly brushed respectively in front housing section heat insulating construction and housing back segment heat insulating construction surface
Build bonding agent；
1.1kg cycloaliphatc glycidyls ester type epoxy resin, 0.9kg curing agent and 0.02kg accelerating agents 3c) are weighed, through mixed
Conjunction makes winding epoxy resin adhesive liquid；
Prepared epoxy resin adhesive liquid 3d) is poured into the glue groove of wrapping machine, then completes heat insulating construction cladding
Carbon fiber wet winding shaping winding layer 5 is carried out on preceding piece housing winding mandrel, rear piece housing winding mandrel, and is inhaled in winding
Walk the epoxy resin adhesive liquid of affluence；
After 3e) being completely wound formable layer, enter stove be formed by curing leading portion winding housing prefabricated component and back segment winding housing it is prefabricated
Part, wherein, curing cycle is 95 DEG C/3h, 120 DEG C/2.5h, 150 DEG C/5.5h；
4) it is segmented housing connection
4a) leading portion is wound in technique rear joint auxiliary mould in housing prefabricated component, back segment winding housing prefabricated component respectively
Technique front connector auxiliary mould is cut off, and removes the front head positioning tool in leading portion winding housing prefabricated component and back segment winding shell
Rear head positioning tool in body prefabricated component, finally respectively winds leading portion in housing prefabricated component and back segment winding housing prefabricated component
The demoulding forms leading portion winding housing and back segment winding housing；
4b) clear up leading portion winding housing and the residual sand of back segment winding enclosure interior；
Leading portion 4c) is wound into the preceding metal connecting piece position in housing and the rear gold in back segment winding housing by matching requirements
Belong to connector position to fix by pin 6, and the sealing in mating connection face uses Parker O-ring, so as to be formed required compound
Material housing.
Embodiment 3
1) front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake are made
100kg water 1a) is weighed, is heated to 60 DEG C, then adds 20kg polyvinyl alcohol, quartz sand is prepared through fully mixing
Binder；
750kg quartz sands 1b) are weighed, the quartz sand binder prepared is poured into quartz sand, is stirred in mixer
After uniformly, quartz mortar is prepared, wherein quartz sand mesh number is 100~140 mesh；
1c) quartz mortar is filled in respectively front head sand core shaping mould, placket section sand core shaping mould, rear cylinder section sand core into
In pattern and rear head sand core shaping mould, and tamping of pressurizeing；
Quartz mortar after 1d) will be die-filling enters stove, is warming up to 100 DEG C and keeps the temperature the curing that 15h carries out quartz mortar, cures
Obtain front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake successively by the demoulding, and by front head sand cake,
Placket section sand cake, rear cylinder section sand cake and rear head sand cake surface are stand-by after repairing；
2) heat insulating construction is made
2a) successively by front head sand cake, placket section sand cake be assembled in winding mandrel correspondence position formed front head core and
Placket section core；Then metal connecting piece inner surface before the first EPDM film is attached to, and the first EPDM will be posted
The preceding metal connecting piece 1 of film is assembled on placket section core cake, finally by technique rear joint auxiliary mould mounted in winding mandrel
Rear end, piece housing winding mandrel before formation；
Polytetrafluoroethylfiberglass fiberglass adhesive tape is pasted on preceding piece housing winding mandrel, then by front head heat insulating construction molding
On the preceding piece housing winding mandrel for having pasted polytetrafluoroethylfiberglass fiberglass adhesive tape, front head heat insulating construction molding passes through preceding envelope
Before head positioning tool 3 is fixed on piece housing winding mandrel, and front head heat insulating construction molding of polishing needs the viscous of manual pasting
Socket part position；The direct tube section on piece housing winding mandrel surface before the method for second EPDM film sampling manual pasting is attached to,
Second EPDM film respectively with front head heat insulating construction molding bonding site, preceding metal connecting piece inner surface the one or three
First the third film of second overlap joint, completes the cladding of front housing section heat insulating construction 7 and forms front head heat insulating construction and preceding direct tube section heat insulating construction；
2b) successively by rear cylinder section sand cake, rear head sand cake be assembled in winding mandrel correspondence position formed rear cylinder section core and
Rear head core, is then attached to rear metal connecting piece inner surface by the 3rd EPDM film, and will post the 3rd EPDM
The rear metal connecting piece 2 of film is assembled on rear cylinder section core cake, finally by technique front connector auxiliary mould mounted in winding mandrel
Front end, piece housing winding mandrel after formation；
Polytetrafluoroethylfiberglass fiberglass adhesive tape is pasted on rear piece housing winding mandrel, then by rear head heat insulating construction molding
On the rear piece housing winding mandrel for having pasted polytetrafluoroethylfiberglass fiberglass adhesive tape, rear head heat insulating construction molding passes through rear envelope
Head positioning tool 4 is fixed on rear piece housing winding mandrel, and rear head heat insulating construction molding of polishing needs the viscous of manual pasting
Socket part position；The method of 4th EPDM film sampling manual pasting is attached to the direct tube section on rear piece housing winding mandrel surface,
4th EPDM film respectively with rear head heat insulating construction molding bonding site, rear metal connecting piece inner surface the three or three
First the third film of second overlap joint, completes the cladding of housing back segment heat insulating construction 8 and forms rear head heat insulating construction and rear direct tube section heat insulating construction；
3) fiber Wet Winding Process makes housing
3a) with electric angle grinder by front head heat insulating construction, preceding direct tube section heat insulating construction, rear direct tube section heat insulating construction and after
End socket heat insulating construction figuring of surface is smooth；
3b) one layer of EPDM sheet is uniformly brushed respectively in front housing section heat insulating construction and housing back segment heat insulating construction surface
Build bonding agent；
1.1kg cycloaliphatc glycidyls ester type epoxy resin, 0.9kg curing agent and 0.02kg accelerating agents 3c) are weighed, through mixed
Conjunction makes winding epoxy resin adhesive liquid；
Prepared epoxy resin adhesive liquid 3d) is poured into the glue groove of wrapping machine, then completes heat insulating construction cladding
Carbon fiber wet winding shaping winding layer 5 is carried out on preceding piece housing winding mandrel, rear piece housing winding mandrel, and is inhaled in winding
Walk the epoxy resin adhesive liquid of affluence；
After 3e) being completely wound formable layer, enter stove be formed by curing leading portion winding housing prefabricated component and back segment winding housing it is prefabricated
Part, wherein, curing cycle is 90 DEG C/2h, 120 DEG C/2h, 155 DEG C/4h；
4) it is segmented housing connection
4a) leading portion is wound in technique rear joint auxiliary mould in housing prefabricated component, back segment winding housing prefabricated component respectively
Technique front connector auxiliary mould is cut off, and removes the front head positioning tool in leading portion winding housing prefabricated component and back segment winding shell
Rear head positioning tool in body prefabricated component, finally respectively winds leading portion in housing prefabricated component and back segment winding housing prefabricated component
The demoulding forms leading portion winding housing and back segment winding housing；
4b) clear up leading portion winding housing and the residual sand of back segment winding enclosure interior；
Leading portion 4c) is wound into the preceding metal connecting piece position in housing and the rear gold in back segment winding housing by matching requirements
Belong to connector position to fix by pin 6, and the sealing in mating connection face uses Parker O-ring, so as to be formed required compound
Material housing.
The composite material casing of obtained sectional forming is subjected to airtight, load performance test.Housing cavity air pressure is pressurizeed
It is qualified without leakage, airtight detection during pressurize to 0.3MPa and pressurize 2h；In water pressure test for strength, housing boosts to 8.0MPa
And pressurize 1min, no pressure drop, shell structure is complete, and bearing strength meets index request.
Claims (6)
- A kind of 1. solid propellant rocket composite material casing forming method, it is characterised in that：Comprise the following steps：1) front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake are madeQuartz mortar 1a) is filled in front head sand core shaping mould, placket section sand core shaping mould, rear cylinder section sand core shaping mould respectively And in rear head sand core shaping mould, and tamping of pressurizeing；1b) be heating and curing to quartz mortar, after curing through the demoulding obtain successively front head sand cake, placket section sand cake, after cylinder Section sand cake and rear head sand cake, and front head sand cake, placket section sand cake, rear cylinder section sand cake and rear head sand cake surface are repaired It is stand-by afterwards；2) heat insulating construction is madeFront head sand cake, placket section sand cake 2a) are assembled in winding mandrel correspondence position successively and form front head core and placket Section core；Then metal connecting piece inner surface before the first EPDM film is attached to, and the first EPDM film will be posted Preceding metal connecting piece (1) be assembled on placket section core cake, finally by technique rear joint auxiliary mould mounted in winding mandrel after End, piece housing winding mandrel before formation；Processing release paper is pasted on preceding piece housing winding mandrel, then front head heat insulating construction molding is installed on and has pasted processing release paper Preceding piece housing winding mandrel on, front head heat insulating construction molding is fixed on preceding piece housing by front head positioning tool (3) On winding mandrel, and front head heat insulating construction molding of polishing needs the bonding site of manual pasting；By the second EPDM film Sampling manual pasting method be attached to before piece housing winding mandrel surface direct tube section, the second EPDM film respectively with preceding envelope First ethylene-propylene diene copolymer oblique cut grafting of head heat insulating construction molding bonding site, preceding metal connecting piece inner surface, before completing housing Section heat insulating construction (7) cladding forms front head heat insulating construction and preceding direct tube section heat insulating construction；Rear cylinder section sand cake, rear head sand cake 2b) are assembled in winding mandrel correspondence position successively and form rear cylinder section core and rear envelope Head core, is then attached to rear metal connecting piece inner surface, and will post the 3rd EPDM film by the 3rd EPDM film Rear metal connecting piece (2) be assembled on rear cylinder section core cake, finally by technique front connector auxiliary mould mounted in winding mandrel before End, piece housing winding mandrel after formation；Processing release paper is pasted on rear piece housing winding mandrel, then rear head heat insulating construction molding is installed on and has pasted processing release paper Rear piece housing winding mandrel on, rear head heat insulating construction molding is fixed on rear piece housing by rear head positioning tool (4) On winding mandrel, and rear head heat insulating construction molding of polishing needs the bonding site of manual pasting；By the 4th EPDM film The method of sampling manual pasting is attached to the direct tube section on rear piece housing winding mandrel surface, the 4th EPDM film respectively with rear envelope 3rd ethylene-propylene diene copolymer oblique cut grafting of head heat insulating construction molding bonding site, rear metal connecting piece inner surface, after completing housing Section heat insulating construction (8) cladding forms rear head heat insulating construction and rear direct tube section heat insulating construction；3) fiber Wet Winding Process makes housing3a) with electric angle grinder by front head heat insulating construction, preceding direct tube section heat insulating construction, rear direct tube section heat insulating construction and rear head Heat insulating construction figuring of surface is smooth；3b) one layer of bonding agent is uniformly brushed respectively in front housing section heat insulating construction and housing back segment heat insulating construction surface；Cycloaliphatc glycidyl ester type epoxy resin, curing agent and accelerating agent 3c) are weighed by preset ratio, goes out to twine through mixed preparing Around with epoxy resin adhesive liquid；Prepared epoxy resin adhesive liquid 3d) is poured into the glue groove of wrapping machine, then completes the leading portion of heat insulating construction cladding Carbon fiber wet winding shaping winding layer (5) is carried out on housing winding mandrel, rear piece housing winding mandrel, and is siphoned away in winding Rich epoxy resin adhesive liquid；After 3e) being completely wound formable layer, enter stove and be formed by curing leading portion winding housing prefabricated component and back segment winding housing prefabricated component；4) it is segmented housing connectionLeading portion 4a) is wound into technique in technique rear joint auxiliary mould in housing prefabricated component, back segment winding housing prefabricated component respectively Front connector auxiliary mould cut off, and remove leading portion winding housing prefabricated component in front head positioning tool and back segment winding housing it is pre- Rear head positioning tool in product, leading portion is finally wound in housing prefabricated component and back segment winding housing prefabricated component demould respectively Form leading portion winding housing and back segment winding housing；4b) clear up leading portion winding housing and the residual sand of back segment winding enclosure interior；Preceding metal connecting piece position 4c) wound leading portion in housing leads to the rear metal connecting piece position in back segment winding housing Cross the composite material casing needed for the fixed formation of pin (6).
- 2. solid propellant rocket composite material casing forming method according to claim 1, it is characterised in that：The step 1) in, quartz mortar process for preparation is specific as follows：Polyethylene alcohol and water is pressed 1：4~5 quality parts ratio prepares quartz sand binder, by quartz sand binder and quartz sand By 1：5~7 quality parts ratio, which is uniformly mixed, is prepared into quartz mortar；And the solidification temperature of quartz mortar is 100~120 DEG C.
- 3. solid propellant rocket composite material casing forming method according to claim 1, it is characterised in that：The step 2) in, processing release paper is polytetrafluoroethylfiberglass fiberglass adhesive tape.
- 4. solid propellant rocket composite material casing forming method according to claim 1, it is characterised in that：The step In 3b), bonding agent is EPDM this build bonding agent.
- 5. solid propellant rocket composite material casing forming method according to claim 1, it is characterised in that：The step In 3c), cycloaliphatc glycidyl ester type epoxy resin, curing agent and accelerating agent are by quality parts ratio：65~68：50~60： 1.2~1.5.
- 6. solid propellant rocket composite material casing forming method according to claim 1, it is characterised in that：The step In 3e), curing cycle is 70~90 DEG C/2~3h, 110~125 DEG C/2~3h, 135~155 DEG C/4~6h.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108995265A (en) * | 2018-06-25 | 2018-12-14 | 湖北三江航天江北机械工程有限公司 | Big L/D ratio winds shell cable hood Preembedded method |
| CN109681345A (en) * | 2018-12-28 | 2019-04-26 | 湖北航天技术研究院总体设计所 | Ultra-large type solid propellant rocket segmented composite material casing and its manufacturing method |
| CN111779593A (en) * | 2020-06-09 | 2020-10-16 | 湖北航天技术研究院总体设计所 | Solid rocket engine shell, solid rocket engine and manufacturing method thereof |
| CN112895233A (en) * | 2021-01-15 | 2021-06-04 | 湖北航天技术研究院总体设计所 | Method for forming solid rocket engine combustion chamber shell |
| CN113926989A (en) * | 2021-10-14 | 2022-01-14 | 合肥工业大学 | Sand core mold structure, preparation method and optimization method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725464A (en) * | 2008-10-17 | 2010-06-09 | 中国科学院宁波材料技术与工程研究所 | Method for making vane of wind-driven generator by adopting ultra-high strength polyethylene fiber composites |
| CN104527084A (en) * | 2014-11-12 | 2015-04-22 | 湖北三江航天江北机械工程有限公司 | A moulding method for a long-dimension separator sleeve of a pulse motor |
| CN106217921A (en) * | 2016-07-25 | 2016-12-14 | 湖北三江航天江北机械工程有限公司 | Electromotor composite material casing integral formation method with jet pipe |
| CN106273599A (en) * | 2016-07-25 | 2017-01-04 | 湖北三江航天江北机械工程有限公司 | Electromotor composite material casing and jet pipe integral formation method |
-
2017
- 2017-11-18 CN CN201711150708.5A patent/CN107901468B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725464A (en) * | 2008-10-17 | 2010-06-09 | 中国科学院宁波材料技术与工程研究所 | Method for making vane of wind-driven generator by adopting ultra-high strength polyethylene fiber composites |
| CN104527084A (en) * | 2014-11-12 | 2015-04-22 | 湖北三江航天江北机械工程有限公司 | A moulding method for a long-dimension separator sleeve of a pulse motor |
| CN106217921A (en) * | 2016-07-25 | 2016-12-14 | 湖北三江航天江北机械工程有限公司 | Electromotor composite material casing integral formation method with jet pipe |
| CN106273599A (en) * | 2016-07-25 | 2017-01-04 | 湖北三江航天江北机械工程有限公司 | Electromotor composite material casing and jet pipe integral formation method |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108995265A (en) * | 2018-06-25 | 2018-12-14 | 湖北三江航天江北机械工程有限公司 | Big L/D ratio winds shell cable hood Preembedded method |
| CN109681345A (en) * | 2018-12-28 | 2019-04-26 | 湖北航天技术研究院总体设计所 | Ultra-large type solid propellant rocket segmented composite material casing and its manufacturing method |
| CN111779593A (en) * | 2020-06-09 | 2020-10-16 | 湖北航天技术研究院总体设计所 | Solid rocket engine shell, solid rocket engine and manufacturing method thereof |
| CN111779593B (en) * | 2020-06-09 | 2021-09-07 | 湖北航天技术研究院总体设计所 | Solid rocket engine shell, solid rocket engine and manufacturing method thereof |
| CN112895233A (en) * | 2021-01-15 | 2021-06-04 | 湖北航天技术研究院总体设计所 | Method for forming solid rocket engine combustion chamber shell |
| CN112895233B (en) * | 2021-01-15 | 2022-04-12 | 湖北航天技术研究院总体设计所 | Method for forming solid rocket engine combustion chamber shell |
| CN113926989A (en) * | 2021-10-14 | 2022-01-14 | 合肥工业大学 | Sand core mold structure, preparation method and optimization method |
| CN116707245A (en) * | 2023-06-02 | 2023-09-05 | 新盛世机电制品(中山)有限公司 | Assembling method applied to magnetic isolation outer rotor motor of ceiling fan |
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